Comparison of individual canine retraction using HYCON device and nickel titanium closed coil spring: In vivo study
نویسندگان
چکیده
منابع مشابه
Open-Coil Retraction Spring
Sliding mechanic has become a popular method for space closure with developments in preadjusted edgewise appliance. Furthermore, various space closing auxiliaries have been developed and evaluated extensively for their clinical efficiency. Their effectiveness enhanced with optimum force magnitude and low-load deflection rate (LDR)/force decay. With the advent of NiTi springs in orthodontics, LD...
متن کاملDeformation of nickel-titanium closed coil springs: an in vitro study
OBJECTIVE The aim of this paper was to determine the amount of deformation in four commercial brands of nickel-titanium closed springs. METHODS A total of 130 springs were divided into 13 subgroups, according to their features and manufacturers (Morelli, Orthometric, Ormco and GAC) and activated from 100% to 1000% of the effective length of the nickel-titanium portion present at the spring, a...
متن کاملthe effects of aging process and preactivation on mechanical properties of nickel-titanium closed coil springs
background: the most favorable feature of nickel-titanium (ni-ti) alloys in orthodontics is producing constant forces in a wide deformation range. ni-ti closed coils produce compressive strength and can be used for several purposes such as space closure. the aim of this study was to evaluate the effects of the aging process (temperature changes and prolonged strain) on ni-ti closed coils and to...
متن کاملSpring coil retraction in coil occlusion of persistent ductus arteriosus.
AIMS To present the short and intermediate term results of coil occlusion of persistent ductus arteriosus and the results of radiographic measurements of spring coils implanted to treat patent ducts. PATIENTS 22 children underwent coil occlusion. Their ages ranged from 2 years 9 months to 12 years 10 months (mean (SD) age, 6.5 (3.6) years). The duct diameter ranged from 1.0 to 3.5 mm at the n...
متن کاملIntrusion of palatally displaced maxillary lateral incisors using nickel titanium closed-coil springs.
eral incisors. EW springs were then bonded to anchor-wire segments as described above (Fig. 3). Three months later, the upper lateral incisors had been significantly intruded (Fig. 4). After the intrusion auxiliaries were removed, a bracket was bonded to the left lateral incisor for incorporation into the main archwire; an .008" ligature wire was bonded to the surface of the right lateral incis...
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ژورنال
عنوان ژورنال: Journal of Indian Orthodontic Society
سال: 2015
ISSN: 0301-5742,0974-9098
DOI: 10.4103/0301-5742.165557